Chops,  the new Raid Avail. is a cool feature.  However, it would be WAY more valuablhe if you produced a graph based on the data.  I'm thinking of something like, assign a 1 point value to each hour.  (In otherwords, it's a Bit comparison).  For the hour spans I sign up for, add a 1 for each hour "slot" and a 0 for the remainders.
Then everyone can be added up per hour/ per day.
| MONDAY | 6am | 7 | 8 | 9 | 10 | 11 | 12pm | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 1 | 2 | 3 | 4 | 5 | 
| JOHN: | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 
| BILL: | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 
| SARAH: | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 
| Totals: | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 2 | 2 | 3 | 3 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 
You can then either post like the above, or do a graphical TOTAL graph (Bar graph) for display.  This doesn't mean replace anything you've already done, but rather add a "TOTALS" report to the current functionality.
The above shows me that from 3-8pm.. and specifically 5-6pm are my best Raiding hours on Mondays.  If I had other days to compare, I could also easily determine that Mondays were better than Tuesdays, if the largest Hour Total I had was a 2 on Tuesdays.
So your saying that you would click on Friday in the current display for example and it would then produce the graph or the graph would be available by default for every day of the week?
also it might make the graph look cleaner if you map it in Military time on 24hr clock.
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Six Demon Bag
Jack Burton: Hey, what more can a guy ask for?
Egg Shen: Oh, a six-demon bag!
Jack Burton: Terrific, a six-demon bag. Sensational. What's in it, Egg?
Egg Shen: Wind, fire, all that kind of thing!